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Boris Valderrama
Asked: 2020-12-27 04:46:39 +0800 CST 2020-12-27 04:46:39 +0800 CST

How do I read the information that is in /usr/bin/env?

  • 772

I want to know where to which file/directory it takes me when I put it in the terminal for example $ python. I already know that putting $ $PATHit shows me the routes, but I want to read it in some file or know where it saves the information.

linux

2 Answers

  1. Best Answer

    you can do it in several ways:

    you can do it by configuring it in ~/.bashrcor in ~/.profileor in ~/.bash_profiledepending on what type of linux you use
    or directly in:/etc/environment

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    1. With the built-in commandandls

      For example, in my case.

      $ ls -l $(command -v python) 
lrwxrwxrwx 1 root root 9 Nov 23  2017 /usr/bin/python -> python2.7

    2. Withreadlink

      $ readlink -f $(command -v python)
/usr/bin/python2.7

    With command -v programashows the file to be executed when calling program , but does not execute it.

    readlinkfollows symlinks, and the option -fprefers that all but the last path it links to exist, unlike the -e.

    And well, you know what you dols -l

    If, after trying the above, you put in your terminal command -v python, you will see the difference since the output of that command only shows you the path to /usr/bin/pythonbut this path is only a symbolic link to the version of python you use.

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